SB2021051103 - Multiple vulnerabilities in Liferay Portal

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Main Vulnerability Database SB2021051103

SB2021051103 - Multiple vulnerabilities in Liferay Portal

Published: May 11, 2021

Security Bulletin ID SB2021051103
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Protection Mechanism Failure (CVE-ID: CVE-2021-29047)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to incorrect SimpleCaptcha implementation, which does not invalidate CAPTCHA answers after they were used. A remote attacker can reuse the same CAPTCHA answers, bypass SimpleCaptcha protection and repeatedly perform actions with the web application.


2) Stored cross-site scripting (CVE-ID: CVE-2021-29048)

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the Layout module's administration page, when processing data passed via the "_com_liferay_layout_admin_web_portlet_GroupPagesPortlet_name" parameter (Site page name). A remote user can permanently inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


3) Stored cross-site scripting (CVE-ID: CVE-2021-29046)

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data the Asset module's category selector input field ("_com_liferay_asset_categories_admin_web_portlet_AssetCategoriesAdminPortlet_title" parameter). A remote user can inject a malicious script into the category name and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Remediation

Install update from vendor's website.

References